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Textglow vs Wordtune

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Textglow starts at $4.99, Wordtune at $4.89. Both have a free tier.

TextglowBrowser tool that rewrites a draft into one of ten tones in about a second, inside Gmail, Slack, or LinkedIn.WordtuneSentence rewriter that keeps the meaning you intended

Side by side

FactTextglowWordtune
CategoryParaphrasing & RewritingParaphrasing & Rewriting
Pricing modelFreemiumFreemium
Starts at$4.99 month$4.89 month
Public APINoNo
PlatformsWebWeb, Chrome Ext
CompanyTextglowAI21 Labs
Launched—2020
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

Textglow

Textglow does one thing narrowly well: rewrite whatever is already typed into a different tone without switching tabs, across ten preset tones from professional to flirty. At $4.99 a month it is priced as an impulse purchase rather than a serious productivity subscription, and the free tier's 10-rewrites-a-day limit is generous enough to actually test it.

Pros

  • Works directly inside Gmail, Slack, LinkedIn, and other sites without copy-pasting
  • 10 distinct tone options from professional to flirty
  • Sub-one-second response time claimed for rewrites
  • No signup required for the free tier, and no text is stored

Cons

  • Free tier caps rewrites at 800 characters, too short for longer emails
  • No company or founder name disclosed anywhere on the site

Wordtune

Wordtune still does the one thing it was built for better than the general assistants do, but its owner is in visible trouble and the product has not shipped news in two years. Cheap and useful today, risky as a dependency.

Pros

  • Rewrites preserve intent instead of paraphrasing into something else, which is the whole point
  • In-place browser extension avoids the copy-paste round trip
  • Cheapest tier is under $5 a month on annual billing

Cons

  • Parent AI21 Labs is in financial distress: a $300M round never closed, acquisition talks with NVIDIA and then Nebius, and reported layoffs above 60%
  • The product blog has not been updated since June 2024 and the site footer still reads 2025
  • AI21's own site no longer mentions Wordtune anywhere, suggesting it is no longer a strategic product
  • Free tier's 10 rewrites a day is exhausted in a single editing session

Which one fits

Choose Textglow if you need

  • Anyone who writes frequently in Gmail, Slack, or LinkedIn and wants quick tone changes
  • Non-native English speakers wanting a fast tone check before sending
  • Users who want a cheap, narrow tool rather than a full writing suite

Choose Wordtune if you need

  • Non-native English writers who need a sentence to read naturally, not be rewritten wholesale
  • Anyone editing inside Gmail, Docs or LinkedIn who wants suggestions in place
  • Light users, since the free tier is genuinely usable for occasional rewriting

More comparisons

All Wordtune alternatives →Browse all Paraphrasing & Rewriting →